md/md-llbitmap: clamp state-machine walks to tracked bits

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llbitmap_state_machine() can be called with an end bit beyond
llbitmap->chunks. In particular, llbitmap_cond_end_sync() passes
sector >> chunkshift, and sector can reach the tracked boundary
exactly.

Clamp the state-machine range to llbitmap->chunks so it cannot walk
past the tracked bitmap.

Tested-by: Mykola Marzhan <mykola@meshstor.io>
Link: https://patch.msgid.link/20260802195038.164272-23-yukuai@kernel.org
Signed-off-by: Yu Kuai <yukuai@fygo.io>

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This commit is contained in:

Yu Kuai 2026-08-03 03:50:31 +08:00

parent 9b2d455305

commit 3fa5499f32

1 changed files with 4 additions and 1 deletions

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drivers/md/md-llbitmap.c

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